Milverton blackmails Mary, exploiting her dalliance in antigovernment activities as a student. Sherlock decides to sneak into Milverton's estate to steal his evidence, but even that act was anticipated. Sherlock finds that he is not the only trespasser.
That is, of course, merely a copy; the
real list is securely in my safekeeping.
Esa es solo una copia, por supuesto;
tengo bien custodiada la lista original.
Bien sûr, ce document n’est qu’une copie.
Essa é uma cópia, o registro
real está em um lugar seguro.
Конечно, это всего лишь копия.